Tie-plate.



M. H. WHITMAN.

TIE PLATE.

APPLICATION FILED JULY 9,1914.

Patented Nov. 17, 1914.

- onnron.

. Specification of Letters Patent.

' PatcntedNov. 17; 191d.

3 I application filed-July a, 1914. Serial 1N0. 849,989.

To all whom it may'cmwem:

Be it known that I, MARVIN H. WHITMAN, citizen of the United States, at Junction City, in the county of Talbot and State of Georgia, have invented certain new and useful Improvements in Tie-Plates, of which the following is a specification.

This invention relateszti) improvem s in tie plates of the type adapted to serve as chairs for railway rails. 7

An object in view is the provision of means for preventing spreading of the rails, which means also serves to prevent lateral displacement or skewing of the cross ties.

With this and further objects in view, as will hereinafter in part be stated and in part become apparent, the invention comprises a plate having rail engaging means at one race and at its opposite face having means disposed to engage a cross tie in a manner adapted to prevent the plate from sliding longitudinally of the cross tie, which means is also disposed to prevent the cross tie from moving edgewise relative to the plate.

The invention further comprises a plate of the character specified whose tie engaging means consists of ridges disposed with abrupt shoulders presented in the direction of relative travel of the parts when the rails spread or when the cross tie moves laterally or is skewed out or" position.

The invention still further comprises certain other novel constructions, combinations, and arrangements of parts as will be hereinafter specified and claimed.

In the accompanying drawing :Figure l is a perspective view of an embodiment of the invention. Fig; 2 is an inverted plan view of the plate detached; and Fig. 3 is a "fragmentary vertical section taken on the plane indicated by the line 3-3 of Fig. 2, the part being seen in normal position.

Referring to the drawing by numerals, 1 indicates a tie plate which is preferably relatively heavy and of substantial proportions and provided with a flange 2 adapted to interlock with the outer base flange 3 of the rail e. Just outside of the flange 3 the plate 1 is formed with spike-receiving apertures 5, 5 and along the line of the inner edge of the inner base flange of rail 4: the plate 1 is provided with spike-receiving apertures 6, 6, a similar set of apertures 7 ,7 being placed inwardly from the line of apertures 6 so as toenable the plate to beutilized with rails of different size.

Extending along the outer portionof Egrellel ridges. or pendent plate 1 are; flanges 8, 8. best seen in Fig. 1,.each ridge 8 has an inclined inner surface meeting at the loweredge of the ridge or flange an abrupt shoulder 9 which is flat and-pref,- erably inclined rearwardly so as to produce a slight overhang or undercut "for giving toithe ridges capacity for readily biting into the material of the cross tie and for preventing movement of the plate toward the end of the cross tie, which direction, for convenience, will hereinafter be identified as outward. v

The under surface of plate 1 from a line adjacent the inner ridge 8 to the inner edge of the plate is provided with two series of ridges 10 and 11, the ridges of the respective series converging toward those of theother so that each ridge is at an incline to the longitudinal ax'rs of the cross tie and each ridge has its relatively outer wall formed as an abrupt shoulder 12, which as seen in Fig. 3 is slightly overhung or undercut for presenting an abrupt wall to the material of the cross tie upset by the intaking of the cutting edge of the respective ridge whereby the plate when in position grips the cross tie in a manner preventing outward movement of the plate or lateral or skewing movement of the cross tie. The tendency of the cross tie to skew is further suppressed by the purchase of the interlocking flange 3 against the outer base flange of the rail 4, which purchase prevents twisting or pivotal movement of the plate.

The structure thus embodied is not only possessed of the desirable function of retaining the rail and tie in their proper relative positions but also insures maintenance of the engagement of the plate with the rail when the rail is elevated as when it is jacked up and does not adhere to the cross tie after the manner of common types of rail chairs and tie plates, whereby liability of mislaying or losing the plate is obviated.

What I claim is 1. A tie plate comprising a body having a ridge depending from its under face and extending in a position for lying transversely of an engaged cross tie, a similar ridge disposed at an acute angle to the firstmentioned ridge and being spaced there from, and a ridge extending substantially at right angles to the second-mentioned ridge and spaced therefrom.

2. A tie plate comprising a body having two series of ridges depending from its under face and spaced apart, the ridges of each series being parallel to each other and disposed at an angle to the ridges of the other series.

3. A tie plate comprising a body having a ridge depending from its under face and lying across the plate in a direction for extending transversely of an engaged cross tie, the said body also having two series' of ridges spaced from the first-mentioned ridge and spaced apart, the ridges of one series being arranged at an angle to those of the other series.

4. A tie plate comprising a body having a ridge depending from its under face and ying across the plate in a direction for extending transversely of an engaged cross tie the said body. also having two series 0 rid es spaced from the first-mentioned ridge an spaced apart, the ridges of one series being arranged at an ang e to those of the other series, each ridge havin an abrupt longitudinal shoulder dispose to prevent movement of the plate in the direction of the shoulder.

In testimon whereof I afix my signature in presence 0 two Witnesses.

Witnesses:

W. ll. illss'rna, Vmen. V. VINES.

MARVIN H. WHITMAN. 

